Giant flying boat



Sept. 8-, 1925. 1,552,473

C. DORNIER GIANT FLYING BOAT Filed June 28, 1920 INVE NTOR:

Patented Sept. 8, 1925.

UNITED STATES CLAUDE DORN'IEB, OF FRIEDRICHSHAFEN, GERMANY.

GIANT FLYING BOAT.

Application filed June 28, 1920. Serial No. 392,561.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L,1313.)

To all whom it may concern:

Be it known that I, CLAUDE DORNIER,

a citizen of the German Empire, residing at Friedrichshafen on theBodensee, Ger- 5 many, have invented certain new and useful Improvementsin Giant Flying Boats (for which I have filed application in GermanyMarch 21, 1917), of which the following is a specification.

My invention refers to hydroaeroplanes and more especially to thearrangement of floats on the type called flying boats.

It is an object of my invention to provide flying boats with floatsarranged in such manner that no detrimental strains of any kind aretransmitted by the floats to the supporting plane framework and the airresistances is not increased. According to my invention lateral floatsare hidden in indentures of the boats hull when not in use, and can bemoved into working position by pushing or swinging them out laterally.These floats, can further be so designed as to serve as life boats.

The drawings attached to this specification and forming part thereof,illustrate a modification of a flying boat in accordance with myinvention in a purely diagrammatical manner.

Fig. 1 is a front view of a giant hydroplane with the lateral floats intheir working position, and

Fig. 2 a top view of the hull.

In the drawings, A is a supporting plane to which the boat-shaped hull Ois attached by means of struts B. The hull C has two lateral indenturesc in which are hidden two floats D. The indentures and the floats areformed in such a way that, when the floats D are in their respectivepositions of rest, their outer walls are flush with the hulls walls. Forthe purpose of moving them into working position, rails E are providedwhich can be pushed outwards from the hull. The floats D are attached tothe ends of these rails and are further connected with the hull C bydetachable ropes or poles F.

On the boat tilting sidewards, thereby causing the floats to touch thewater, the floats will act towards increasing the lateral stability ofthe craft.

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

I claim:

In a flying boat in combination, a boatshaped hull, indentures in theside walls of said hull and boat-shaped floats fitting in saidindentures and movably connected with said hull, said floats beingadapted to serve as life-boats.

In testimony whereof I affix my signature.

CLAUDE DORNIER.

